SOLUTION: a tugboat goes 180 miles upstream in 10 hours. the return trip downstream takes 5 hours. find the speed of the tugboat without a current and the speed of the current.

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Question 617418: a tugboat goes 180 miles upstream in 10 hours. the return trip downstream takes 5 hours. find the speed of the tugboat without a current and the speed of the current.
Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
t - c = 180/10

t + c = 180/5

add the equations to eliminate c

solve for t

substitute back to find c

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